Locking fitting for a door, French window or the like provided with a spring-bolt elastically restored into locking position

Abstract

A locking fitting for a leaf of a door, French window or the like, such as a lock, espagnolette-lock or the like, at least one spring-lock ( 2 ) elastically restored into locking position and capable of being actuated, through an appropriate control mechanism, such as by a control handle or knob. This locking fitting includes a retainer associated to the spring-bolt and designed so as to be capable, on the one hand, of maintaining the latter in an unlocked or semi-locked position when the leaf is open and, on the other hand, of being made inactive in order to release the spring-lock by the sash-frame of the door or French window, in particular by a keeper this sash-frame is provided with and which is aimed at receiving the spring-bolt.

What is claimed is:  
     
       1. A locking fitting apparatus comprising: 
       a leaf;  
       a sash-frame receiving said leaf therein;  
       at least one spring lock connected to said leaf capable of moving between a locking position and a retracted position, said spring lock elastically urged toward said locking position said spring lock having a head, a retaining means being affixed to said head of said spring lock, said head having a back face and a beveled face, said back face having a groove therein, said groove extending parallel to a direction of movement of said spring lock;  
       a control means connected to said spring lock, said control means for actuating said spring lock;  
       the retaining means interactive with said spring lock, said retaining means said spring lock in said retracted position when said leaf is open, said retaining means releases said spring lock such that said spring lock is urged outwardly to said locking position when said leaf is closed in said sash-frame, said retaining means comprising:  
       a lever received within said groove, said lever pivotable about an axis perpendicular to said direction of movement, said lever having an outer edge with a cut-out formed thereon, said lever having a bent portion on a side of said lever opposite said cut-out;  
       a retaining rim cooperative with said cut-out of said outer edge of said lever; and  
       a blade spring secured to a rear surface of said head, said blade spring cooperative with said bent portion so as to urge said bent portion toward said rear surface of said head, said head having a groove formed in said rear surface thereof, said bent portion received within said groove in said rear surface, said groove having an interior surface acting as a stop to a movement of said bent portion caused by said blade spring.  
     
     
       2. The apparatus of  claim 1 , said retaining means releases said spring lock through a keeper affixed in said sash-frame, said keeper receiving said spring lock in said locking position. 
     
     
       3. The apparatus of  claim 1 , said retaining rim comprising a slot through which said head of said spring lock passes, said slot formed on a casing of said control means. 
     
     
       4. The apparatus of  claim 1 , said retaining comprising a slot formed on a face plate through which said head passes. 
     
     
       5. The apparatus of  claim 1 , said control means comprising a casing having a front surface through which said spring lock protrudes when in said locking position, said lever having a portion extending outwardly beyond said front surface of said casing, said lever having a control pawl on said outer edge, said control pawl protruding outwardly away from said back face of said head, said control pawl cooperative with a keeper on said sash-frame, said keeper receiving said spring lock when said leaf is closed against said sash-frame.